2016 KIA Picanto 1.0L Petrol · SP66 ODC

A consistent pattern of brake pipe corrosion advisories has emerged over the most recent MOT tests on this 2016 Kia Picanto, suggesting that the metal brake lines running along the underside of the vehicle are beginning to deteriorate beneath their protective coatings. The trend first appeared at the 2022 test with advisories on both rear brake pipes, was repeated with similar findings in 2023, and then cleared in 2024 and 2025, with the most recent test on 2 September 2026 recording a clean pass with no defects. While the absence of advisories at the two latest tests is reassuring, brake pipe corrosion can progress silently along the underside of the car, particularly at pipe joints, mounting clips, and areas where road grime accumulates, so the prior history of surface corrosion on the front-to-rear and rear pipes warrants careful attention rather than dismissal. A recorded mileage of 12,471 miles across ten years equates to an annual average of roughly 1,247 miles, which is exceptionally low and well below typical usage for a city car of this age. This indicates either very light private use or extended periods of inactivity, both of which carry their own mechanical consequences. Low-mileage vehicles commonly suffer from dry-rotted rubber components such as suspension bushes, steering gaiters, and drive shaft boots, as well as seized calliper slide pins and brake pistons from infrequent use. Standing periods can also lead to internal corrosion of brake lines from condensation inside the pipes, which may explain the recurring brake pipe advisories despite minimal road use. Conversely, the clutch, gearbox synchros, and engine internals will have experienced very limited wear. A prospective buyer should conduct a thorough underside inspection with particular focus on the brake line network, paying close attention to the front-to-rear pipe run along the chassis and the rear sections near the wheel arches, where the advisories were previously raised. On a test drive, listen for any scraping, grinding, or metallic squeal from the brakes, as seized calliper pistons or slide pins are common on low-mileage cars and can cause the vehicle to pull to one side under braking. Check the brake pedal feel for excessive travel or sponginess, which could indicate internal pipe deterioration. Inspect the handbrake travel and feel, as rear brake mechanisms that have rarely been used can seize, and confirm that the rear wheels rotate freely without binding when the handbrake is released. Examine all visible rubber boots and gaiters for cracks or splits, particularly on the steering rack and drive shafts, and bounce each corner of the car to assess for knocking or clonking from worn suspension bushes that may have hardened with age rather than worn with use. Finally, verify that the brake fluid has been changed within the last two years, as low-mileage operation does not prevent moisture absorption within the hydraulic system, and check the condition of the tyres, as perished sidewalls can develop even on tyres with plenty of tread depth when a vehicle has been used sparingly or stored for long periods. Inspect the exhaust system for surface corrosion and any blowing from joints, as ten-year-old exhausts on low-use vehicles can deteriorate from condensation sitting in the silencer rather than being burned off through regular running. Ask for evidence of recent servicing, particularly oil and filter changes, because extended intervals between runs can allow moisture contamination of the engine oil. A clean MOT history is a positive sign, but the combination of low mileage and a documented pattern of brake pipe corrosion means a hands-on mechanical inspection remains essential before committing to purchase.